The famous dish actually consists of two kinds of steamed rice dumplings.
Banh vac is filled with ground shrimp, garlic, spring onion, lemon grass, and spices. Banh bao, on the other hand, has minced pork and mushrooms as the main fillings.
They are known –somewhat poetically — as white roses among English speakers, though only one of the two dishes lives up to the name; the other looks more like Chinese jiaozi or pot stickers.
The dish is served with a dipping sauce made from shrimp broth.
Source: Thanh nien news